So if you ever had any problems booting from a CF you use as a HDD replacement then there might be the problem of "fixed drive vs. removable drive" by many BIOS. I always wondered why my Toshiba Libretto or the IBM PC-110 are so picky about CF, but actually in most of the cases it's some kinda flag that marks them as "removable", preventing many BIOS from booting.

So to make a long story short - there's this tool ATCFWCHG which can change the flag on the CF card.

The command is ATCFWCHG.COM /P /F for a CF on the primary IDE channel.
For secondary IDE channel use ATCFWCHG.COM /S /F instead.

The card needs to be Master on any of these channels for the tool to work.

Also make sure to use "fdisk /MBR" and "sys" on the drive letter to prepare it for being DOS/Windows bootable.

Hmmm, maybe one day it will have more people. I lack the time to post 1337 content all the time, but so far we got quite a lot - so google will show it on some ocassions.

Yeah CF as an SSD - pretty cheap, pretty effective. At least for the Toshiba Libretto this is kinda standard. For the IBM PC 110 it's also a no-brainer since it can boot from the CF slot. Some vintage laptops, palmtops and similar devices can be picky - then it's definitely a must to try the trick with writing the flag, helped in some cases.